The manual paper cutting machine is for cutting the A4 paper and card into half or smaller sizes (12" inches cutting width). The adjustable side and firm clamping system assure a clean straight cut every time. You also can use it as a desk top cutter.The blade on this unit is a hardened steel, razor sharp, 17" blade. It will easily cut 80g paper, 400 sheets high or approx 1.5". However, should you ever need to replace the blade, this cutter is designed so that it is very easy to do. The heavy duty paper cutter has an easy replaceable blade. Simply use the included Blade Splint to hold the blade while you remove the screws that hold the blade in place. The blade comes right off and a new one can be put on just as easy.It is ideal for offices, schools, churches, businesses, printing houses as well as professional individual users.Feature:Computer generated Grid in inches (down to 1/8") for precise cutsSurface protected with scratch resistant coatingHardened precision steel blade customized at the factoryNew innovative floating side gaugeLong lasting cutting pad (the material that the blade rests on when it cuts)Adjustable paper clamp locks down paper firmly in place, eliminating shifting and tearingEasy-Lock Safety lever prevents cutting until releasedAll Metal Paper Clamp HandlePre-assembled and easy to useSpecification:Base Size: 21" x 15" x 1 1/2"Maximum Cutting Width: 17"Best Cutting Size: Under A4 PaperMaximum Cutting Capacity: 400 sheets high or approx 1.5"(for 80g A4 Paper)Package dimension: 25 x 17.7 x 11.8"Package Content:1x 12" Paper Cutter1x Blade Splint5x Screw1x User Manual